#include <iostream>
#include <fstream>
using namespace std;

int main()
{
    ifstream in("./wwwroot/404.html",ios::binary);
    string out,line;
    if(!in.is_open())   cout<<"打开文件失败"<<endl;
    while(getline(in,line))
    {
        out += line;
    }
    cout<<out<<endl;
    in.close();
    return 0;
}